Exciting Advances in Alternative Energy
Passive Annual Heat Storage, Improving the Design of Earth Shelters
How to design a home with a BUILT-IN COMFORTABLE TEMPERATUREThe ultimate in energy conservation.
Collect summer sunshine by cooling the house naturally, then restore that heat to keep it cozy and warm all winter.
Natural convective-powered ventillation system, brings in warm air in the winter and cool air in the summer.
2005 up date of the 1983 classic, complete with 103 color illustrations.
Learn how to store summer's sunshine to keep your wigwam warm all winter!
More Information from the PAHS Education Page
by Prof. John N. Hait, PhD.
160 pages, fully color-illustrated, e-book
2004 E-book Edition.
Ready for Immediate Download
Price = $49.95 USD
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